一、部分程序

int main(void)
{WDTCTL = WDTPW | WDTHOLD;	//关闭看门狗init();                     //屏幕初始化InitIIC();					//I2C初始化TMP_Init();					//tmp421初始化SetupRTC();_EINT();while (1){}
}#pragma vector=RTC_VECTOR
__interrupt void RTC_ISR(void)
{switch (__even_in_range(RTCIV, RTC_RT1PSIFG)){case RTC_NONE:break;case RTC_RTCRDYIFG:{Temp_MSB = R_I2C(0x55, 0x00);          //读MSB  高八位，表达整数部分Temp_LSB = R_I2C(0x55, 0x10);       //读LSB  第八位，高四位有效，表达小数部分，一格代表0.0625℃Temp_LSB = Temp_LSB >> 4;           //右移四位float Temp_value = Temp_LSB * 0.0625; //小数部分处理unsigned char Temp_LSB1 = Temp_value * 100;sprintf(buf1, "%d", Temp_MSB);        //类型转换sprintf(buf2, "%d", Temp_LSB1);Init_buff();                        //数据显示//display("Temperature:", 20, 12, 0, 1, 0, 0);display(&buf1, 80, 84, 0, 1, 0, 0);display(".", 128, 84, 0, 1, 0, 0);display(&buf2, 144, 84, 0, 1, 0, 0);/* RTCDOW   RTCMON   RTCDAY  RTCHOUR  RTCMIN RTCSEC *///读取时间nian = RTCYEAR;yue = RTCMON;ri = RTCDAY;shi = RTCHOUR;fen = RTCMIN;miao = RTCSEC;zhou = RTCDOW;}break;case RTC_RTCTEVIFG:break;case RTC_RTCAIFG:break;case RTC_RT0PSIFG:break; /* 分频器 0 */case RTC_RT1PSIFG:break; /* 分频器 1 */default:break;}__no_operation();
}

二、展示

显示实时时间和温度。

三、全部代码下载

下载：

https://docs.qq.com/sheet/DUEdqZ2lmbmR6UVdU?tab=BB08J2

资料：

https://qq742971636.blog.csdn.net/article/details/112093263

https://qq742971636.blog.csdn.net/article/details/103341709